23 lines
1.4 KiB
Markdown
23 lines
1.4 KiB
Markdown
# Using a Codepage in String Conversion Operations
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When converting [string](/en/docs/basis/types/stringconst) variables into arrays of [char type](/en/docs/basis/types/integer/integertypes#char) and back, the encoding that by default corresponds to the current ANSI of Windows operating system (CP_ACP) is used in MQL5. If you want to specify a different type of encoding, it can be set as additional parameter for the [CharArrayToString()](/en/docs/convert/chararraytostring), [StringToCharArray()](/en/docs/convert/stringtochararray) and [FileOpen()](/en/docs/files/fileopen) functions.
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The table lists the built-in constants for some of the most popular code pages. Not mentioned code pages can be specified by a code corresponding to the page.
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Built-in Constants of Codepages
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| Constant | Value | Description |
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| --- | --- | --- |
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| CP_ACP | 0 | The current Windows ANSI code page. |
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| CP_OEMCP | 1 | The current system OEM code page. |
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| CP_MACCP | 2 | The current system Macintosh code page.
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Note: This value is mostly used in earlier created program codes and is of no use now, since modern Macintosh computers use Unicode for encoding. |
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| CP_THREAD_ACP | 3 | The Windows ANSI code page for the current thread. |
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| CP_SYMBOL | 42 | Symbol code page |
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| CP_UTF7 | 65000 | UTF-7 code page. |
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| CP_UTF8 | 65001 | UTF-8 code page. |
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See also
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[Client Terminal Properties](/en/docs/constants/environment_state/terminalstatus#enum_terminal_info_integer)
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